need help! brown spots on leaves.

i am 13 days away from harvest. i checked for mites on and under leaves, nothing. not sure what this could be. thank you for any info.

its a deficiency usually caused by a ph issue . do you ph your water and nutes. you should start flushing now anyway but itd be best if you phd your water to 6.5

thanks rezo. i figured that was the case. i do not have a ph checker, so i will have to go out and buy one.

well if ur only 13 days do oyu really have to worry much about it, i mean when mine flower ifound it kinda normal for leaves to start killing themselves to make buds

tru tru i was thinking that also. being my first grow i was a little concerned that the leaves that are on the bud are showing brown spots, but like you said greenbud i think i will let it go. for the next time i will monitor the ph better.

If your only 13 days away, your fine let them brown and fall off, I think you have a little n deff and thats normal when the plant flowers..You can give them more n when flowering at first and i hear that it really helps and you get more bud..But I think your too late for that, you don't want to smoke all that..

its not that bad at all brother.. mine do the same thing sometimes.. dont even worry about it

Your leaves a a bit yellow. If you're that close then that close then don't worry.

well i did nute every other feeding, so i will have to try nutes more often. thanks everyone for the reassurance.